Pesticide delayed birds' migration

摘要

The world's most widely used insecticides may delay the migrations of songbirds and hurt their chances of mating.In the first experiment to track the effects of a neonicotinoid on wild birds, scientists captured white-crowned sparrows (Zonotrichia leucophrys) as they migrated north from Mexico and the southern United States to Canada and Researchers tracked white-crowned sparrows dosed with a neonicotinoid to study the pesticide's effect on bird migration.